Optimum combining systems in the presence of Rician fading: SINR and capacity analysis

Raymond H Y Louie; Matthew R. McKay; Iain B. Collings

doi:10.1109/ICASSP.2008.4518217

Optimum combining systems in the presence of Rician fading: SINR and capacity analysis

Raymond H Y Louie, Matthew R. McKay, Iain B. Collings

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

Abstract

This paper analyzes the performance of adaptive antenna arrays employing linear combining techniques designed to maximize the SINR. In the communications literature, these systems are referred to as optimum combining (OC) systems. We consider the practical case where the desired signal undergoes Rician fading, and is corrupted by Rayleigh-faded interfering signals and noise. We first propose new closed-form Gamma approximations for the SINR distribution at the output of the OC combiner, which we show to be remarkably accurate. We then employ these approximations to derive new closed-form expressions for the ergodic capacity and simplified expressions for the high-SNR regime. These results reveal that the capacity improves monotonically with Rician K-factor.

Original language	English
Title of host publication	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	2745-2748
Number of pages	4
ISBN (Print)	1424414849, 9781424414840
DOIs	https://doi.org/10.1109/ICASSP.2008.4518217
Publication status	Published - 2008
Externally published	Yes
Event	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States Duration: 31 Mar 2008 → 4 Apr 2008

Other

Other	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Country/Territory	United States
City	Las Vegas, NV
Period	31/03/08 → 4/04/08

Keywords

Adaptive arrays
Cochannel interference
Interference suppression
Land mobile radio cellular systems
Signal processing antennas

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10.1109/ICASSP.2008.4518217

Cite this

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title = "Optimum combining systems in the presence of Rician fading: SINR and capacity analysis",

abstract = "This paper analyzes the performance of adaptive antenna arrays employing linear combining techniques designed to maximize the SINR. In the communications literature, these systems are referred to as optimum combining (OC) systems. We consider the practical case where the desired signal undergoes Rician fading, and is corrupted by Rayleigh-faded interfering signals and noise. We first propose new closed-form Gamma approximations for the SINR distribution at the output of the OC combiner, which we show to be remarkably accurate. We then employ these approximations to derive new closed-form expressions for the ergodic capacity and simplified expressions for the high-SNR regime. These results reveal that the capacity improves monotonically with Rician K-factor.",

keywords = "Adaptive arrays, Cochannel interference, Interference suppression, Land mobile radio cellular systems, Signal processing antennas",

author = "Louie, {Raymond H Y} and McKay, {Matthew R.} and Collings, {Iain B.}",

year = "2008",

doi = "10.1109/ICASSP.2008.4518217",

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pages = "2745--2748",

booktitle = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP ; Conference date: 31-03-2008 Through 04-04-2008",

}

Louie, RHY, McKay, MR & Collings, IB 2008, Optimum combining systems in the presence of Rician fading: SINR and capacity analysis. in 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP., 4518217, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 2745-2748, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, Las Vegas, NV, United States, 31/03/08. https://doi.org/10.1109/ICASSP.2008.4518217

Optimum combining systems in the presence of Rician fading: SINR and capacity analysis. / Louie, Raymond H Y; McKay, Matthew R.; Collings, Iain B.
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2008. p. 2745-2748 4518217.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Optimum combining systems in the presence of Rician fading

T2 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP

AU - Louie, Raymond H Y

AU - McKay, Matthew R.

AU - Collings, Iain B.

PY - 2008

Y1 - 2008

N2 - This paper analyzes the performance of adaptive antenna arrays employing linear combining techniques designed to maximize the SINR. In the communications literature, these systems are referred to as optimum combining (OC) systems. We consider the practical case where the desired signal undergoes Rician fading, and is corrupted by Rayleigh-faded interfering signals and noise. We first propose new closed-form Gamma approximations for the SINR distribution at the output of the OC combiner, which we show to be remarkably accurate. We then employ these approximations to derive new closed-form expressions for the ergodic capacity and simplified expressions for the high-SNR regime. These results reveal that the capacity improves monotonically with Rician K-factor.

AB - This paper analyzes the performance of adaptive antenna arrays employing linear combining techniques designed to maximize the SINR. In the communications literature, these systems are referred to as optimum combining (OC) systems. We consider the practical case where the desired signal undergoes Rician fading, and is corrupted by Rayleigh-faded interfering signals and noise. We first propose new closed-form Gamma approximations for the SINR distribution at the output of the OC combiner, which we show to be remarkably accurate. We then employ these approximations to derive new closed-form expressions for the ergodic capacity and simplified expressions for the high-SNR regime. These results reveal that the capacity improves monotonically with Rician K-factor.

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KW - Interference suppression

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ER -

Optimum combining systems in the presence of Rician fading: SINR and capacity analysis

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